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+package cn.reghao.tnb.content.app.config.mybatis;
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+
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+import org.apache.ibatis.exceptions.PersistenceException;
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+import org.apache.ibatis.executor.BatchResult;
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+import org.apache.ibatis.session.*;
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+import org.mybatis.spring.MyBatisExceptionTranslator;
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+import org.mybatis.spring.SqlSessionTemplate;
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+import org.springframework.dao.support.PersistenceExceptionTranslator;
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+import org.springframework.util.Assert;
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+
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+import java.lang.reflect.InvocationHandler;
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+import java.lang.reflect.Method;
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+import java.sql.Connection;
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+import java.util.List;
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+import java.util.Map;
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+
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+import static java.lang.reflect.Proxy.newProxyInstance;
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+import static org.apache.ibatis.reflection.ExceptionUtil.unwrapThrowable;
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+import static org.mybatis.spring.SqlSessionUtils.getSqlSession;
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+import static org.mybatis.spring.SqlSessionUtils.isSqlSessionTransactional;
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+
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+/**
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+ * @author reghao
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+ * @date 2023-12-30 19:26:21
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+ */
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+public class CustomSqlSessionTemplate extends SqlSessionTemplate {
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+ private final SqlSessionFactory sqlSessionFactory;
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+ private final ExecutorType executorType;
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+ private final SqlSession sqlSessionProxy;
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+ private final PersistenceExceptionTranslator exceptionTranslator;
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+
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+ private Map<Object, SqlSessionFactory> targetSqlSessionFactories;
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+ private SqlSessionFactory defaultTargetSqlSessionFactory;
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+
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+ public CustomSqlSessionTemplate(SqlSessionFactory sqlSessionFactory) {
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+ this(sqlSessionFactory, sqlSessionFactory.getConfiguration().getDefaultExecutorType());
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+ }
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+
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+ private CustomSqlSessionTemplate(SqlSessionFactory sqlSessionFactory, ExecutorType executorType) {
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+ this(sqlSessionFactory, executorType, new MyBatisExceptionTranslator(sqlSessionFactory.getConfiguration()
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+ .getEnvironment().getDataSource(), true));
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+ }
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+
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+ private CustomSqlSessionTemplate(SqlSessionFactory sqlSessionFactory, ExecutorType executorType,
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+ PersistenceExceptionTranslator exceptionTranslator) {
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+
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+ super(sqlSessionFactory, executorType, exceptionTranslator);
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+
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+ this.sqlSessionFactory = sqlSessionFactory;
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+ this.executorType = executorType;
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+ this.exceptionTranslator = exceptionTranslator;
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+
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+ this.sqlSessionProxy = (SqlSession) newProxyInstance(
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+ SqlSessionFactory.class.getClassLoader(),
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+ new Class[] { SqlSession.class },
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+ new SqlSessionInterceptor());
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+
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+ this.defaultTargetSqlSessionFactory = sqlSessionFactory;
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+ }
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+
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+ public void setTargetSqlSessionFactories(Map<Object, SqlSessionFactory> targetSqlSessionFactories) {
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+ this.targetSqlSessionFactories = targetSqlSessionFactories;
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+ }
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+
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+ public void setDefaultTargetSqlSessionFactory(SqlSessionFactory defaultTargetSqlSessionFactory) {
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+ this.defaultTargetSqlSessionFactory = defaultTargetSqlSessionFactory;
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+ }
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+
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+ @Override
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+ public SqlSessionFactory getSqlSessionFactory() {
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+ String databaseId = DynamicDataSource.name.get();
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+ if (databaseId == null) {
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+ databaseId = "master";
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+ }
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+
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+ SqlSessionFactory targetSqlSessionFactory = targetSqlSessionFactories.get(databaseId);
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+ if (targetSqlSessionFactory != null) {
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+ return targetSqlSessionFactory;
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+ } else if (defaultTargetSqlSessionFactory != null) {
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+ return defaultTargetSqlSessionFactory;
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+ } else {
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+ Assert.notNull(targetSqlSessionFactories, "Property 'targetSqlSessionFactories' or 'defaultTargetSqlSessionFactory' are required");
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+ Assert.notNull(defaultTargetSqlSessionFactory, "Property 'defaultTargetSqlSessionFactory' or 'targetSqlSessionFactories' are required");
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+ }
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+ return this.sqlSessionFactory;
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+ }
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+
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+ @Override
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+ public Configuration getConfiguration() {
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+ return this.getSqlSessionFactory().getConfiguration();
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+ }
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+
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+ @Override
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+ public ExecutorType getExecutorType() {
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+ return this.executorType;
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+ }
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+
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+ @Override
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+ public PersistenceExceptionTranslator getPersistenceExceptionTranslator() {
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+ return this.exceptionTranslator;
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+ }
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+
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+ /**
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+ * {@inheritDoc}
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+ */
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+ @Override
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+ public <T> T selectOne(String statement) {
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+ return this.sqlSessionProxy.<T> selectOne(statement);
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+ }
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+
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+ /**
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+ * {@inheritDoc}
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+ */
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+ @Override
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+ public <T> T selectOne(String statement, Object parameter) {
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+ return this.sqlSessionProxy.<T> selectOne(statement, parameter);
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+ }
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+
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+ /**
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+ * {@inheritDoc}
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+ */
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+ @Override
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+ public <K, V> Map<K, V> selectMap(String statement, String mapKey) {
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+ return this.sqlSessionProxy.<K, V> selectMap(statement, mapKey);
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+ }
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+
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+ /**
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+ * {@inheritDoc}
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+ */
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+ @Override
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+ public <K, V> Map<K, V> selectMap(String statement, Object parameter, String mapKey) {
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+ return this.sqlSessionProxy.<K, V> selectMap(statement, parameter, mapKey);
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+ }
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+
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+ /**
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+ * {@inheritDoc}
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+ */
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+ @Override
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+ public <K, V> Map<K, V> selectMap(String statement, Object parameter, String mapKey, RowBounds rowBounds) {
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+ return this.sqlSessionProxy.<K, V> selectMap(statement, parameter, mapKey, rowBounds);
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+ }
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+
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+ /**
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+ * {@inheritDoc}
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+ */
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+ @Override
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+ public <E> List<E> selectList(String statement) {
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+ return this.sqlSessionProxy.<E> selectList(statement);
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+ }
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+
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+ /**
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+ * {@inheritDoc}
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+ */
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+
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+ @Override
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+ public <E> List<E> selectList(String statement, Object parameter) {
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+ return this.sqlSessionProxy.<E> selectList(statement, parameter);
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+ }
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+
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+ /**
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+ * {@inheritDoc}
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+ */
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+ @Override
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+ public <E> List<E> selectList(String statement, Object parameter, RowBounds rowBounds) {
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+ return this.sqlSessionProxy.<E> selectList(statement, parameter, rowBounds);
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+ }
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+
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+ /**
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+ * {@inheritDoc}
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+ */
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+ @Override
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+ public void select(String statement, ResultHandler handler) {
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+ this.sqlSessionProxy.select(statement, handler);
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+ }
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+
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+ /**
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+ * {@inheritDoc}
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+ */
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+ @Override
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+ public void select(String statement, Object parameter, ResultHandler handler) {
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+ this.sqlSessionProxy.select(statement, parameter, handler);
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+ }
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+
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+ /**
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+ * {@inheritDoc}
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+ */
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+ @Override
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+ public void select(String statement, Object parameter, RowBounds rowBounds, ResultHandler handler) {
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+ this.sqlSessionProxy.select(statement, parameter, rowBounds, handler);
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+ }
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+
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+ /**
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+ * {@inheritDoc}
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+ */
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+ @Override
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+ public int insert(String statement) {
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+ return this.sqlSessionProxy.insert(statement);
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+ }
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+
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+ /**
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+ * {@inheritDoc}
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+ */
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+ @Override
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+ public int insert(String statement, Object parameter) {
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+ return this.sqlSessionProxy.insert(statement, parameter);
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+ }
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+
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+ /**
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+ * {@inheritDoc}
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+ */
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+ @Override
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+ public int update(String statement) {
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+ return this.sqlSessionProxy.update(statement);
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+ }
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+
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+ /**
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+ * {@inheritDoc}
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+ */
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+ @Override
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+ public int update(String statement, Object parameter) {
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+ return this.sqlSessionProxy.update(statement, parameter);
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+ }
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+
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+ /**
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+ * {@inheritDoc}
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+ */
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+ @Override
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+ public int delete(String statement) {
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+ return this.sqlSessionProxy.delete(statement);
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+ }
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+
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+ /**
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+ * {@inheritDoc}
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+ */
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+ @Override
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+ public int delete(String statement, Object parameter) {
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+ return this.sqlSessionProxy.delete(statement, parameter);
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+ }
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+
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+ /**
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+ * {@inheritDoc}
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+ */
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+ @Override
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+ public <T> T getMapper(Class<T> type) {
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+ return getConfiguration().getMapper(type, this);
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+ }
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+
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+ /**
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+ * {@inheritDoc}
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+ */
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+ @Override
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+ public void commit() {
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+ throw new UnsupportedOperationException("Manual commit is not allowed over a Spring managed SqlSession");
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+ }
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+
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+ /**
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+ * {@inheritDoc}
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+ */
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+ @Override
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+ public void commit(boolean force) {
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+ throw new UnsupportedOperationException("Manual commit is not allowed over a Spring managed SqlSession");
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+ }
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+
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+ /**
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+ * {@inheritDoc}
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+ */
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+ @Override
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+ public void rollback() {
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+ throw new UnsupportedOperationException("Manual rollback is not allowed over a Spring managed SqlSession");
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+ }
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+
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+ /**
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+ * {@inheritDoc}
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+ */
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+ @Override
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+ public void rollback(boolean force) {
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+ throw new UnsupportedOperationException("Manual rollback is not allowed over a Spring managed SqlSession");
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+ }
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+
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+ /**
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+ * {@inheritDoc}
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+ */
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+ @Override
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+ public void close() {
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+ throw new UnsupportedOperationException("Manual close is not allowed over a Spring managed SqlSession");
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+ }
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+
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+ /**
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+ * {@inheritDoc}
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+ */
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+ @Override
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+ public void clearCache() {
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+ this.sqlSessionProxy.clearCache();
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+ }
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+
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+ /**
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+ * {@inheritDoc}
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+ */
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+ @Override
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+ public Connection getConnection() {
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+ return this.sqlSessionProxy.getConnection();
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+ }
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+
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+ /**
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+ * {@inheritDoc}
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+ * @since 1.0.2
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+ */
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+ @Override
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+ public List<BatchResult> flushStatements() {
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+ return this.sqlSessionProxy.flushStatements();
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+ }
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+
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+ /**
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+ * Proxy needed to route MyBatis method calls to the proper SqlSession got from Spring's Transaction Manager It also
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+ * unwraps exceptions thrown by {@code Method#invoke(Object, Object...)} to pass a {@code PersistenceException} to
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+ * the {@code PersistenceExceptionTranslator}.
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+ */
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+ private class SqlSessionInterceptor implements InvocationHandler {
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+ @Override
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+ public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
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+ final SqlSession sqlSession = getSqlSession(
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+ CustomSqlSessionTemplate.this.getSqlSessionFactory(),
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+ CustomSqlSessionTemplate.this.executorType,
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+ CustomSqlSessionTemplate.this.exceptionTranslator);
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+ try {
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+ Object result = method.invoke(sqlSession, args);
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+ if (!isSqlSessionTransactional(sqlSession, CustomSqlSessionTemplate.this.getSqlSessionFactory())) {
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+ // force commit even on non-dirty sessions because some databases require
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+ // a commit/rollback before calling close()
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+ sqlSession.commit(true);
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+ }
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+ return result;
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+ } catch (Throwable t) {
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+ Throwable unwrapped = unwrapThrowable(t);
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+ if (CustomSqlSessionTemplate.this.exceptionTranslator != null && unwrapped instanceof PersistenceException) {
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+ Throwable translated = CustomSqlSessionTemplate.this.exceptionTranslator
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+ .translateExceptionIfPossible((PersistenceException) unwrapped);
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+ if (translated != null) {
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+ unwrapped = translated;
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+ }
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+ }
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+ throw unwrapped;
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+ } finally {
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+ closeSqlSession(sqlSession, CustomSqlSessionTemplate.this.getSqlSessionFactory());
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+ }
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+ }
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+ }
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+
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+ private void closeSqlSession(SqlSession sqlSession, SqlSessionFactory sqlSessionFactory) {
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+ }
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+}
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